Categories
Linux Virtualization

VMWare Workstation 14 Ubuntu

I recently encountered a  minor issue attempting to create additional VMs in VMWare Workstation 14 on Ubuntu. The error I received suggested there wasn’t enough memory free to power on an additional VM but the host has 32GB of RAM and I’d allocated 20GB across all VMs.

Inspecting the /etc/vmware/config file revealed the value:

prefvmx.allVMMemoryLimit = "12954"

Which is a hard upper limit for all VMs, adjusting it to the following with VMWare closed and then start VMWare resolved the problem:

prefvmx.allVMMemoryLimit = "20480"

 

Categories
Virtualization

eSXi update storage drivers

1. Power down all running VMs on host (or migrate to another eSXi host if using vCenter)

2. Enable SSH on the eSXi host

3. SSH to the host

4. Enter maintenance mode via:

esxcli system maintenanceMode set --enable true

5. Uninstall the previous storage driver via:

esxcli software vib remove -n scsi-hpvsa -f

6. Reboot the eSXi host via:

esxcli system shutdown reboot --reason "your reason here" 

7. When the eSXi host is back SSH back in and ensure Maintenance Mode is enabled through the same command in step 4.

8. SCP / SFTP copy the new storage driver to /tmp/ on the eSXi host

9. Install the new storage drive via:

esxcli software vib install -v file:/tmp/name-of-driver-file-here.vib --force --no-sig-check --maintenance-mode

10. Reboot

11. Disable SSH

12. Exit Maintenance Mode

13. Power on / migrate back VMs

Categories
Linux

Ubuntu, Kernel 4.14+, VMWare Workstation 14

I was unable to compile the ubuntu kernel patches for VMWare Workstation 14.0 for a couple of reasons on Ubuntu 16.04 with an updated kernel v4.14:

 

1. Launching VMWare Workstation resulted in a GUI window complaining no GCC-7.2 was available, solved by the following commands (thanks to https://askubuntu.com/questions/859256/how-to-install-gcc-7-or-clang-4-0) :

sudo add-apt-repository ppa:jonathonf/gcc-7.1
sudo apt-get update
sudo apt-get install gcc-7 g++-7
 

2. The next failure was with further kernel compiling modules with the vmmonitor service failing. This needed a patch on the install scripts to support the latest kernel, resolved by the following commands (thanks to https://github.com/mkubecek/vmware-host-modules/commit/770c7ffe611520ac96490d235399554c64e87d9f for the patch and https://superuser.com/questions/1255099/vmware-workstation-not-enough-physical-memory-since-last-update/1255963 for guidance on applying it):


~$ sudo cd /tmp
~$  cp /usr/lib/vmware/modules/source/vmmon.tar .
~$  tar xf vmmon.tar
~$  rm vmmon.tar
~$  wget https://raw.gi 
thubusercontent.com/mkubecek/vmware-host-modules/fadedd9c8a4dd23f74da2b448572df95666dfe12/vmmon-only/linux/hostif.c
~$  mv -f hostif.c vmmon-only/linux/hostif.c
~$  tar cf vmmon.tar vmmon-only
~$  rm -fr vmmon-only
~$  mv -f vmmon.tar /usr/lib/vmware/modules/source/vmmon.tar
~$  vmware-modconfig --console --install-all
Categories
Virtualization

VMWare ESXi

Troubleshooting from SSH should begin with  /var/log/vmkernel.log

 

 

Categories
Virtualization

VMWare HP Microserver Gen 8

Had very slow disk performance on a RAID 1 array in ESXi on my new HP Gen 8 microserver and found hardware acceleration was disabled.

The answer appears to be rolling back the storage driver as per http://homeservershow.com/forums/index.php?/topic/9141-low-io-performance-with-esxi-60/page-3

esxcli software vib remove -n Hewlett-Packard:scsi-hpvsa
esxcli software vib install –viburl=/vmfs/volumes/DATASTORE/scsi-hpvsa-5.5.0-88OEM.550.0.0.1331820.x86_64.vib

Driver available from http://vibsdepot.hp.com/hpq/mar.30.2015/esxi-550-drv-vibs/hpvsa/

note:

First update all drivers via
esxcli software vib update –depot=http://vibsdepot.hp.com/hpq/latest/index.xml –force
esxcli software vib update –depot=http://vibsdepot.hp.com/hpq/latest/index-drv.xml –force